.main {
  background: black;
  width: 100%;
  color: wheat;
}

canvas {
  border: 1rpx solid #eee;
//   width: 600rpx;
//   height: 400rpx;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
}
